That is incorrect. The type certificate requires that the prop for a
C-85 be between 69 1/2 inches and 71 inches. The C-75 allowed a prop
up to 73 inches. Even if it met the static requirement, a 73 inch prop
from a C-75 is still illegal on a C-85 on an Ercoupe.
Larry Snyder
N99340
On Jul 23, 2008, at 11:07 PM, THOMAS COOK wrote:
Ed Good thought, but only if it will not meet the static rpm test.
If the 75 had a cruise prop then it might work well for a clim prop
on the 85. I would not repitch until I did a runup.
Tom
Ed Burkhead <[EMAIL PROTECTED]> wrote:
Correct me if I’m wrong, but don’t you also often need to get the
propeller repitched or replaced to allow the engine to spin up
enough to develop the higher horsepower?
Ed
